Mario Lopez and his wifey, Courtney Mazza are already parents to their 2-year-old daughter, Gia, and now, they're having another baby!!

Mazza revealed:

"I'm due around Gia's birthday [September 11]. I'm in that stage where I can't fit into my regular clothes anymore but I can't fit into maternity clothes yet either. But I'm good, it's all good! Right now, I'm really craving Cap'n Crunch cereal! But I try to keep it in moderation and not go too overboard."

And while Courtney is busy with her cravings, the Saved by the Bell star has his hands full with trying to explain to Gia why her mommy's belly is growing.

He said:

"We're trying to explain it to her, so now she points at Courtney's belly and says, 'Baby baby!' Once mama really starts popping out I think she'll understand more . . . I can't wait to expand the Lopez family!"

We know it's gonna be a while until Mario's wife gives birth, but we're already getting impatient — especially because there's a big chance that the couple's next tot will have his/hers daddy's dimples!!